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Finding the Fourth Proportional to 110,561.20, 165,841.80 and 36,679.60

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Solution

The fourth proportional to 110,561.20, 165,841.80 and 36,679.60 is: 55,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,561.20 : 165,841.80 = 36,679.60 : x
  2. Step 2: Convert to fraction form
    110,561.20/165,841.80 = 36,679.60/x
  3. Step 3: Cross multiply
    110,561.20x = 165,841.80 × 36,679.60
  4. Step 4: Simplify right side
    110,561.20x = 6,083,010,887.28
  5. Step 5: Solve for x
    x = 6,083,010,887.28/110,561.20
  6. Step 6: Final answer
    x = 55,019.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.